localframe

localframe is a skill for Claude Code, Codex from koolamusic/claudefiles. It costs 123 tokens per session (2,018 once invoked), scanned A, original, MIT.

A local recording workflow for making silent product demos of web apps, documentation sites, or APIs. It uses browser or terminal scripts to create an MP4, numbered still images, a description, and a committed shot list.

In plain words
What is it for?
Use it to record paced Playwright browser walkthroughs or real terminal sessions with asciinema. It is suited to product demos that someone else will narrate or upload without narration.
Why use it?
It removes the need to manually capture and organise repeatable demo footage. A publish check helps stop incomplete or failed recordings from being released.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths.

Good fit Use it to record paced Playwright browser walkthroughs or real terminal sessions with asciinema. It is suited to product demos that someone else will narrate or upload without narration.

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Install with agentmods
npx agentmods add skills/koolamusic/claudefiles/localframe
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add koolamusic/claudefiles --skill localframe
Clone the repo
git clone --depth 1 https://github.com/koolamusic/claudefiles

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for localframe

README.md
[![agentmods](https://agentmods.dev/badge/skills/koolamusic/claudefiles/localframe/github.svg)](https://agentmods.dev/skills/koolamusic/claudefiles/localframe)
Your own site
<a href="https://agentmods.dev/skills/koolamusic/claudefiles/localframe"><img src="https://agentmods.dev/badge/skills/koolamusic/claudefiles/localframe/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for localframe

Your own site · 80×15
<a href="https://agentmods.dev/skills/koolamusic/claudefiles/localframe"><img src="https://agentmods.dev/badge/skills/koolamusic/claudefiles/localframe.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 123 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,018 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00123 $0.02018
Opus 5.5 $0.00049 $0.00807
Sonnet 5.5 $0.00025 $0.00404
Haiku 4.5 $0.00012 $0.00202

Measured 7d ago against content hash e2b7d09fde5e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

localframe scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/doctor.sh, scripts/postflight.sh, templates/demo.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

3. Dry-run every command. For a terminal take, run `bash demo.sh` until every `curl | jq` line works against a real response. A jq filter written from memory is often wrong, and a mid-take failure costs a full re-shoot.
skills/localframe/SKILL.md · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Localframe

Two kinds of take, one method:

  • Browser: Playwright drives headless Chromium at 1440×900 through a paced walkthrough and records it.
  • Terminal: a shell shot list types each command, runs it for real, and asciinema records the session.

The owner narrates over the result or uploads it as is. Takes are silent.

Templates and scripts live beside this file, deployed at ~/.claude/skills/localframe/. Call scripts by that full path and run them from the take directory:

File Use
templates/walkthrough.mjs browser shot list with pause, shot, typeSlow, scrollSlow, waitFile
templates/demo.sh terminal shot list with type_line, run, comment
~/.claude/skills/localframe/scripts/doctor.sh [browser|terminal] pre-flight tool check; installs nothing
~/.claude/skills/localframe/scripts/postflight.sh <take> ['<revoke check>'] the publish gate; exits 1 on any failure

Copy a template into the take and edit it for the product. Don't build a shared library around it. Every product needs a different script.

Take layout

<take>/
  walkthrough.mjs | demo.sh     shot list, committed so the take can be reproduced
  walkthrough.mp4 | demo.mp4    the video
  raw/walkthrough.webm          browser original
  demo.cast, demo.gif           terminal originals
  01-sign-in.png 02-overview.png ...   one numbered still per screen; also the shot list
  listing.md                    one paragraph describing the recording
  .take/                        scratch, gitignored, mode 700: secrets.env, relay files

.take/secrets.env is the one place secrets live during a take. Set it to mode 0600. It holds BASE_URL, DEMO_KEY and anything else the shot list needs. The browser side writes a key it creates there. The terminal side sources it. Nothing secret goes in a command-line argument or in a committed script. Delete .take/ once postflight passes.

Pre-flight

  1. Run ~/.claude/skills/localframe/scripts/doctor.sh browser or terminal from the take directory. Install what it reports missing. Its hints are exact. Note that the agg crate on crates.io is unrelated; install agg from asciinema's repo.
  2. Create a demo key for this take. Never load a production key or a shared key into a recorded session. Give anything the walkthrough creates an obviously disposable name (demo-take-2026-10-10).
  3. Dry-run every command. For a terminal take, run bash demo.sh until every curl | jq line works against a real response. A jq filter written from memory is often wrong, and a mid-take failure costs a full re-shoot.
  4. Count the requests the shot list makes and keep them under the API's per-minute quota, so a retake doesn't hit a 429 mid-scene.
  5. Create the scratch directory with mkdir -m 700 .take (the browser template also creates it), and add .take/ to the repository's .gitignore if the take lives in a repo.

Read the full file on GitHub · 130 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 130 lines · 123 tokens per session scan A e2b7d09fde5e

Subscribe to this mod's changes

localframe is a skill published in the GitHub repository koolamusic/claudefiles (130 stars, last pushed 4d ago), licensed MIT. It adds 123 tokens to every session and 2,018 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-11.

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